First Printing Publication Date: March 2010 copyright 2010 international code council, inc

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SECTION 613

Exception: Deferred tests that were not performed at the time of report preparation because of climatic conditions.

612.2 Lighting and electrical systems commissioning and completion requirements. Prior to issuance of a certificate of occupancy, the registered design professional shall provide evidence of lighting and electrical systems commissioning and completion in accordance with the International Energy Conservation Code and the provisions of this section.

Drawing notes shall specify the provisions for commissioning and completion requirements in accordance with this section and are permitted to refer to specifications for further requirements. Copies of all documentation shall be given to the owner and made available to the code official upon request in accordance with Sections 612.2.4 and 612.2.5.

612.2.1 Pre-construction documentation, lighting. Construction and owner education documents shall include floor plans, diagrams and notations of sufficient clarity describing the types of, location and operational requirements of all lighting controls including a sequence of operation and intended set points for all dimming systems and automatic daylight controls, demonstrating conformance to the provisions of this code, relevant laws, ordinances, rules and regulations, as approved by the code official.

612.2.2 Verification. The approved agency conducting commissioning shall verify that controls have been installed in accordance with the approved construction documents. Any discrepancies shall be reviewed for compliance with Section 609 and the requirements of sections 502.2, 502.3 and 502.4 of the International Energy Conservation Code.

612.2.3 Commissioning. Lighting controls shall be commissioned in accordance with this Section.

612.2.3.1 Occupant sensors. It shall be verified that the functional testing in accordance with International Energy Conservation Code Section 505.2.4 has been performed.

612.2.3.2 Automatic daylight controls. Automatic daylight controls shall be commissioned in accordance with all of the following:

1. It shall be verified that the placement and orientation of each sensor is consistent with the manufacturer’s installation instructions. If not, the sensor shall be relocated or replaced.

2. Control systems shall be calibrated to maintain light levels identified in the construction documents;
3. Prior to calibration of systems controlling dimmable luminaires, all lamps shall be seasoned in accordance with the recommendations of the lamp manufacturer.
4. Where located inside buildings, calibration of open-loop daylight controls, which receive illumination from natural light only, shall not occur until fenestration shading devices such as blinds or shades have been installed and commissioned;
5. Calibration of closed-loop daylight controls, that receive illumination from both natural and artificial light, shall not occur until furniture systems and interior finishes have been installed, and any fenestration shading devices such as blinds or shades have been installed and commissioned; and
6. Calibration procedures shall be in accordance with the manufacturer’s installation instructions.

612.2.3.3 Time switch and programmable schedule controls. Lighting controls installed in accordance with Section 609 shall be programmed. Scheduling shall incorporate weekday, weekend and holiday operating times, including leap year and daylight savings time corrections. It shall be verified that system overrides work and are located in compliance with Section 505.2 of the International Energy Conservation Code.

612.2.3.4 Dimming systems with preset scenes. For programmable dimming systems it shall be verified that automatic shutoff and manual overrides are working. Prior to programming, all lamps shall have been in operation, at full output, for 100 hours or seasoned in accordance with the lamp manufacturer’s installation instructions, whichever is less.

612.2.4 Post-commissioning documentation. All of the following documentation shall be provided to the owner in accordance with Section 903.

All settings determined during commissioning activities outlined in Section 612.2.3.
A narrative describing the intent and functionality of all controls including any capability for users to override a schedule or master command.
Specification sheets for all lighting equipment and controls.
Operation manuals for each lighting control device. Required maintenance and maintenance schedules shall be clearly identified. All documentation and instructions necessary for building maintenance personnel to maintain and re-calibrate lighting systems and controls.
An annual inspection schedule for lighting controls.
Troubleshooting information for fluorescent dimming systems and the remediation of switching issues such as false-ons and false-offs.

612.2.5 Post occupancy commissioning. The commissioning activities in Section 612.2.3 shall be repeated 18 months after occupancy. Control devices that are not functioning properly shall be repaired or replaced. Adjustments to calibration settings shall be documented. This documentation shall be provided to the building owner.

612.3 Building envelope systems commissioning and completion requirements. Prior to issuance of a certificate of occupancy, the registered design professional shall provide evidence of building thermal envelope systems commissioning and completion in accordance with the International Energy Conservation Code and the provisions of this section.

Drawing notes shall specify the provisions for commissioning and completion requirements in accordance with this section and are permitted to refer to specifications for further requirements. Copies of all documentation shall be given to the owner and made available to the code official upon request in accordance with Sections 612.3.1 through 612.3.2.

612.3.1 Pre-construction documentation, building thermal envelope. Construction and owner education documents shall indicate the location, nature and extent of the work proposed and show the functional requirements and operation of all building thermal envelope systems demonstrating conformance to the provisions of this code, relevant laws, ordinances, rules and regulations, as approved by the code official.

612.3.2 Verification. The approved agency conducting commissioning shall verify that building thermal envelope systems have been installed in accordance with the approved construction documents. Any discrepancies shall be reviewed for compliance with requirements of the International Energy Conservation Code and this code.

SECTION 613 Jurisdictional requirements & project electives

613.1 General. Section 613 provides jurisdictional requirements and project electives related to energy conservation and efficiency and atmospheric quality. Project electives shall not be mandatory unless selected by the owner or design professional in responsible charge and indicated in the Project Elective Checklist in accordance with Section 303.4.

613.2 Post certificate of occupancy TANEU, energy demand, and CO2e emissions reporting. Where the jurisdiction indicates in Table 302.1 that ongoing post certificate of occupancy TANEU, energy demand and CO2e emissions reporting is required, and where the jurisdiction has indicated in Tables 302.1 and 602.1 that enhanced energy performance in accordance with Section 602.1 or reduced CO2e emissions in accordance with Section 602.4 is required, TANEU, energy demand, and CO2e emissions reporting shall be provided in accordance with this Section.

613.2.1 Purpose. The purpose of this section is to provide for the uniform reporting and display of the total annual net energy use, peak demand for each energy form and emissions associated with building operations and building sites.

613.2.2 Intent. The intent of these requirements is to provide for the ongoing reporting and display of the total annual net energy use, peak energy demand and emissions associated with operation of the building and its systems to document ongoing compliance with the provisions of Sections 602 and 603.

613.2.3 Reporting. Reports in accordance with Sections 613.2.3.1 through 613.2.3.3 shall be generated.

613.2.3.1 Annual net energy use. The TANEU associated with the operation of the building and the buildings on the site, as determined in accordance with Section 603.1.1, shall be reported by the building owner or the owner’s registered agent to the [insert name of appropriate state or local government agency to be responsible for collecting reported information].

Where there are multiple buildings on a building site, each building shall have its TANEU reported separately. Where there are energy uses associated with the building site other than the buildings on the site, the TANEU for the building site shall be reported separately.

Energy use for the previous year shall cover the complete calendar year and be reported on, or before, March 1^st of the following year.

613.2.3.2 Peak monthly energy demand reporting. The peak demand of all energy forms serving each building and the building site, as determined in accordance with Section 603.1.2, shall be reported by the building owner or the owner’s registered agent to the [insert name of appropriate state or local government agency to be responsible for collecting reported information].

Where there are multiple buildings on a building site each building shall have its energy demand reported separately. Where there are energy uses associated with the building site other than the buildings on the site, the energy demand for the building site shall be reported separately.

Monthly energy demand data for the previous year shall cover the complete calendar year and be reported on, or before, March 1^st of the following year.

613.2.3.3 Annual CO2e emissions reporting. The annual emissions associated with the operation of the building and its systems, as determined in accordance with Section 603.1.3, shall be reported by the building owner or the owner’s registered agent to the [insert name of appropriate state or local government agency to be responsible for collecting reported information].

Where there are multiple buildings on a building site each building shall have its annual emissions reported separately. Where there are energy uses associated with the building site other than the buildings on the site, the annual CO2e emissions for the building site shall be reported separately.

Emissions reported for the previous year shall cover the complete calendar year and be reported on, or before, March 1^st of the following year.

613.3 TANEU reduction project electives. Project electives for buildings pursuing Performance-based compliance in accordance with Section 602.3.2 shall be in accordance with Sections 613.3.1 through 613.3.10. TANEU reductions shall not be recognized for buildings designed prescriptively in accordance with Section 602.3.1. Building TANEU shall be determined in accordance with Section 603.

613.3.1 Seven point reduction in TANEU. Building TANEU determined in accordance with Section 603 shall be at least 7 points lower than the maximum value allowed in Section 602.

613.3.2 Fourteen point reduction in TANEU. Building TANEU determined in accordance with Section 603 shall be at least 14 points lower than the maximum value allowed in Section 602.

613.3.3 Twenty-one point reduction in TANEU. Building TANEU determined in accordance with Section 603 shall be at least 21 points lower than the maximum value allowed in Section 602.

613.3.4 Twenty-eight point reductions in TANEU. Building TANEU determined in accordance with Section 603 shall be at least 28 points lower than the maximum value allowed in Section 602.

613.3.5 Thirty-five point reductions in TANEU. Building TANEU determined in accordance with Section 603 shall be at least 35 points lower than the maximum value allowed in Section 602.

613.3.6 Forty-two point reductions in TANEU. Building TANEU determined in accordance with Section 603 shall be at least 42 points lower than the maximum value allowed in Section 602.

613.3.7 Forty-nine point reductions in TANEU. Building TANEU determined in accordance with Section 603 shall be at least 49 points lower than the maximum value allowed in Section 602.

613.3.8 Fifty-six point reductions in TANEU. Building TANEU determined in accordance with Section 603 shall be at least 56 points lower than the maximum value allowed in Section 602.

613.3.9 Sixty-three point reductions in TANEU. Building TANEU determined in accordance with Section 603 shall be at least 63 points lower than the maximum value allowed in Section 602.

613.3.10 Seventy point reductions in TANEU. Building TANEU determined in accordance with Section 603 shall be at least 70 points lower than the maximum value allowed in Section 602.

613.4 Building thermal envelope systems project elective. Buildings seeking a building thermal envelope system project elective in accordance with Table 303.1 and Section 303.4 shall comply with this section.

613.5 Mechanical systems project elective. Mechanical systems project electives for buildings designed prescriptively in accordance with Section 602.3.1 and buildings pursuing Performance-based compliance in accordance with Section 602.3.2 shall be in accordance with Sections 613.5.1 through 613.5.4.

613.5.1 Mechanical equipment. Mechanical equipment shall meet sections 613.5.1.1 through 613.5.1.4 to achieve the mechanical systems project elective:

613.5.1.1 Heating equipment. For heating equipment, the part-load efficiency of the equipment shall be at least 10 percent greater than the part-load efficiencies shown in the applicable tables of Section 606, the International Energy Conservation Code, or ASHRAE 90.1, or the equipment shall meet ENERGY STAR criteria, as applicable.

613.5.1.2 Cooling equipment. For cooling equipment, the part-load efficiency of the equipment shall be at least 10 percent greater than the part-load efficiencies shown in the applicable tables of Section 606, the International Energy Conservation Code, or ASHRAE 90.1, or the equipment shall meet ENERGY STAR criteria.

613.5.1.3 Geothermal heat pumps. Geothermal heat pumps shall meet the provisions of Table 613.5.1.3 based on the applicable referenced test procedure.

613.5.1.4 Multi-stage geothermal heat pumps. The efficiency of multi-stage geothermal heat pumps shall meet the provisions of Table 613.5.1.3 based on the applicable referenced test procedure.

Table 613.5.1.3

Energy-Efficiency Criteria for Geothermal Heat Pumps

Product Type	Minimum EER	Minimum COP	Test Procedure
Water-to-Air Closed loop	14.1	3.3	ISO 13256-1
Water-to-Air Open loop	16.2	3.6	ISO 13256-1
Water-to-Water Closed loop	15.1	3.0	ISO 13256-2
Water-to-Water Open loop	19.1	3.4	ISO 13256-2
Direct Expansion (DX) or Direct GeoExchange (DGX)	15.0	3.5	AHRI 870

613.5.2 Duct Insulation. Ducts shall be insulated to R-8 minimum where located in unconditioned spaces and R-11 minimum where located outside of the building structure. Where located within a building envelope assembly, the duct or plenum shall be separated from the building exterior or unconditioned or exempt spaces by a minimum of R-8 insulation

613.5.3 Duct system testing. Joints, longitudinal and transverse seams and connections in ductwork and plenums shall be leak-tested in accordance with the SMACNA HVAC Air Duct Leakage Test Manual and shall have a rate of air leakage (CL) less than or equal to 12 as determined in accordance with equation 5-2 of the International Energy Conservation Code.

606.5.3.1 Documentation. Documentation shall be furnished by the designer demonstrating that representative sections totaling at least 50 percent of the duct area have been tested and that all tested sections meet the requirements of Section 613.5.3.

613.5.4 Service water heating equipment. Service water heating equipment shall be in accordance with Section 613.5.4.1.

613.5.4.1 SWH efficiency. The efficiency of the service water heating equipment must be at least 10 percent greater than the efficiencies shown in the International Energy Conservation Code and ASHRAE 90.1 or the service water heating equipment shall be ENERGY STAR qualified.

613.6 Passive design project elective. Buildings seeking a passive design project elective in accordance with Section 303.4 shall comply with this Section.

613.6.1 Passive design provisions. The simulation shall prove that not less than forty percent of the energy conserved in the proposed design, as compared to the standard reference design, has been achieved through passive design. Passive heating and cooling shall use strategies including, but not limited to, building orientation, fenestration provisions, material selection, insulation choices, overhangs, shading means, microclimate vegetation and water use, passive cooling towers, natural heat storage, natural ventilation, and thermal mass.

Chapter 7
water resource conservation and efficiency

SECTION 701

GENERAL
701.1 Scope. The provisions of this chapter shall establish the means of conserving water used indoors, outdoors and in wastewater conveyance.

SECTION 702

FIXTURES, FITTINGS, EQUIPMENT AND APPLIANCES
702.1 Fitting and fixture consumption. A schedule of plumbing fixtures and fixture fittings shall be provided that demonstrates compliance with all of the following:
1. The maximum water consumption of fixtures and fittings shall comply with the flow rates specified in Table 702.1 for the fixtures and fittings listed therein.
2. The aggregate potable water consumption of fixtures and fittings shall be 20 percent less than the reference value calculated in accordance with Section 702.1.1.
Exceptions: The following fixtures and devices shall not be required to comply with the reduced flow rates of this section.

Blowout design water closets having a maximum water consumption of 2.8 gallons (10.4 L) per flush.

Clinical sinks having a maximum water consumption of 4.5 gallons (17 L) per flush.

Service sinks, bath faucets, pot fillers, laboratory faucets, utility faucets, and other fittings designed primarily for filling operations.

702.1.1 Aggregate fixture and fitting water consumption calculation. The aggregate consumption of all fixtures and fittings shall be calculated in accordance with Tables 702.1.1(1) and 702.1.1(2) for the purpose of demonstrating compliance with the aggregate consumption requirement in Sections 702.1 and 702.1.2. Table 702.1.1(1) is to be used first to calculate the reference water use and Table 702.1.1(2) is then to be used to calculate the required reduction in that reference water use. The percentage of reduction of the total water use shall be calculated in accordance with equation 7-1.
Consumption for each fixture or fitting type = (flow rate) x (duration) x (daily uses per occupant) x (number of occupants). The aggregate fixture and fitting consumption is equal to the sum of the consumption values for each fixture and fitting located in the occupancy.
Percent reduction = [(R-D)/R] x 100 (Equation 7-1)
Where:
R= Total reference water use determined from Table 702.1.1(1)

D= Total design water use determined from Table 702.1.1(2)

TABLE 702.1

MAXIMUM FIXTURE AND FITTING FLOW RATES

FOR REDUCED WATER CONSUMPTION

FIXTURE OR FIXTURE FITTING TYPE	MAXIMUM FLOW RATE
Showerhead^e	2.0 gpm^b and WaterSense compliant
Lavatory faucet-private	1.5 gpm^c and WaterSense compliant
Lavatory faucet-public (metered)	0.25 gpc^d
Lavatory faucet-public (nonmetered)	0.5 gpm^c
Kitchen and bar sink faucets (non-residential)	2.2 gpm^c
Urinal	0.5 gpfand WaterSense compliant or nonwater urinal
Water closet	1.6 gallons per flush^a
Prerinse Spray Valves	1.3 gpm^c
Drinking Fountains (manual)	0.7 gpm^c
Drinking Fountains (metered)	0.25 gpc^d

a. The effective flush volume of a dual-flush water closet is defined as the composite, average flush volume of two reduced flushes and one full flush.

b. Flow rate at a pressure of 80 psi.

c. Flow rate at a pressure of 60 psi.

d. Gallons per cycle

e. Includes hand showers, body sprays, rainfall panels and jets. Showerhead(s) shall be supplied by automatic compensating valves that comply with ASSE 1016 or ASME A112.18.1/CSA B125.1 and that are specifically designed to function at the flow rate of the showerheads being used.
TABLE 702.1.1(1)

REFERENCE FIXTURE AND SUPPLY FITTING WATER CONSUMPTION

Plumbing Fixture or Supply Fitting	Flow Rate or Volume^b	Duration	Daily Uses Per Occupant	Occupants^h	Daily Volume Gallon per day
Shower head ^a	2.5 gpm^e	5 min.	1	Note c
Lavatory faucet, private	2.2 gpm^d	0.25 min.	3
Lavatory, public (metered)	0.25 gpc^f	1 cycle	3
Lavatory, public (nonmetered)	0.5 gpm^d	0.25 min.	3
Kitchen and bar sink faucets (non-residential)	2.2 gpm^d	4 min.	1
Urinal	1.0 gpc^f	1 cycle	2/male
Water closet	1.6 gpc^f	1 cycle	1/male^g	males
Water closet	1.6 gpc^f	1 cycle	3/female	females
				Total Reference Water Use (R) (gal/day)
For SI: 1 gallon = 3.785 L, 1 gallon per minute = 3.785 L/m, 1 pound per square inch = 6.895 kPa.

a. A hand-held shower spray is considered to be a showerhead.

b. Consumption tolerances shall be determined from referenced standards.

c. For shower heads, the number of occupants shall be based upon the anticipated number of shower users.

d. Flow at 60 psi

e. Flow at 80 psi

f. Gallons per cycle (gpc)

g. The daily use per male occupant shall be 3 where urinals are not installed

h. The number of occupants shall be that number used to determine the required number of plumbing fixtures in accordance with the International Plumbing Code.

TABLE 702.1.1(2)

DESIGN FIXTURE AND SUPPLY FITTING WATER CONSUMPTION

Plumbing Fixture or Supply Fitting	Flow Rate or Volume^bg	Duration	Daily Uses Per Occupant	Occupants ^f	Daily Volume Gallon per day
Shower head ^a		5 min.	1	Note c
Lavatory faucet, private		0.25 min.	3
Lavatory, public (metered)		1 cycle	3
Lavatory, public (nonmetered)		0.25 min.	3
Kitchen and bar sink faucets (non-residential)		4 min.	1
Urinal		1 cycle	2/male
Water closet^d		1 cycle	1/male^e	males
Water closet^d		1 cycle	3/female	females
				Total Design Water Use (D)(gal/day)
For SI: 1 gallon = 3.785 L, 1 gallon per minute = 3.785 L/m, 1 pound per square inch = 6.895 kPa.

a. A hand-held shower spray is considered to be a shower head.

b. Consumption tolerances shall be determined from referenced standards.

c. For shower heads, the number of occupants shall be based upon the anticipated number of shower users.

d. Gravity-flush High-Efficiency Water Closets (HETs) shall be certified to the current WaterSense High-Efficiency Toilet Specification.

e.The daily use per male occupant shall be 3 where urinals are not installed.

f. The number of occupants shall be that number used to determine the required number of plumbing fixtures in accordance with the International Plumbing Code.

g. Where non-potable water is supplied to a fixture, enter zero in this column for that fixture.
702.1.2 Additional reductions. The provisions for Tier 1 and Tier 2 maximum fixture flow rates shall be applicable where indicated in Table 302.1. The specific requirements for Tier 1 and Tier 2 fixture and fitting consumption shall be as follows:
Tier 1. A schedule of plumbing fixtures and fixture fittings shall be provided that demonstrates that fixture and fitting consumption meets the applicable reduced flow rates specified in Table 702.1 and that demonstrates a 30 percent reduction in the reference aggregate fixture and fitting potable water consumption calculated in accordance with Section 702.1.1.
Tier 2. A schedule of plumbing fixtures and fixture fittings shall be provided that demonstrates that fixture and fitting consumption meets the applicable reduced flow rates specified in Table 702.1 and that demonstrates a 40 percent reduction in the reference aggregate fixture and fitting potable water consumption calculated in accordance with Section 702.1.1.
702.1.3 Reduction prohibited. The flow rates for emergency and decontamination fixtures and fittings shall not be reduced below the manufacturer’s specifications.
702.2 Combination tub and shower valves. Tub spout leakage from combination tub and shower valves that occurs when the outlet flow is diverted to the shower shall be not more than 0.1 gpm, measured in accordance with the requirements of ASME A112.18.1/CSA B125.1.
702.3 Food establishment pre-rinse spray heads. Food establishment pre-rinse spray heads shall have a maximum flow rate in accordance with Table 702.1 and shall shut off automatically when released. Pre-rinse spray head valves shall not be equipped with hold-open devices.
702.4 Drinking fountain controls. Drinking fountains equipped with manually controlled valves shall shutoff automatically upon the release of the valve. Metered drinking fountains shall comply with the flow volume specified in Table 702.1.
702.5 Nonwater urinal connection. The fixture drain for nonwater urinals shall connect to a branch drain that serves one or more lavatories that discharge upstream of such urinals.
702.6 Appliances. Sections 702.6.1 through 702.6.4 shall regulate appliances that are not related to space conditioning.
702.6.1 Clothes washers. Clothes washers shall be Energy Star labeled. Clothes washers in public laundry facilities shall consume not more than 8.0 gallons (30.28 L) of water per cubic foot of clothes container volume per cycle on any wash setting.
702.6.2 Ice makers. Ice makers shall not be water cooled. Ice makers shall comply with the requirements of the Energy Star Program for commercial ice machines.
702.6.3 Food steamers. Food steamers shall consume not more than 2.0 gal (7.5 L) per hour in the full operational mode.
702.6.4 Dishwashers. Dishwashers shall be Energy Star labeled or shall be in accordance with Table 702.6.4.

TABLE 702.6.4

MAXIMUM WATER CONSUMPTION FOR

COMMERCIAL DISHWASHERS

DISHWASHER Type	SANITATION METHOD
DISHWASHER Type	High Temperature (gallons per rack)	Chemical (gallons per rack)
Conveyor	0.7	0.62
Door	0.95	1.16
Under Counter	0.9	0.98

702.7 Municipal reclaimed water. Where required by Table 302.1 and where municipal reclaimed water is accessible and allowed for such use by the laws, rules and ordinances applicable in the jurisdiction, it shall be supplied to water closets, water-supplied urinals, water-supplied trap primers and applicable industrial uses.
702.8 Efficient hot water distribution systems. The volume of water in the piping between the source of hot water and the hot water outlets of shower, sink and lavatory fixture fittings shall not exceed 87 ounces. The volume of water contained in fixture branch piping that connects to a hot water circulation loop or electrically heat- traced pipe shall not exceed 32 ounces (0.47 L). The volume shall be calculated in accordance with Section 702.8.2.
702.8.1 Circulating hot water systems. Circulating hot water systems shall be provided with an automatic or readily accessible manual switch to turn off the hot water circulating pump when not in use.
702.8.2 Volume calculation. The volume of water between the source of hot water and a given outlet shall be calculated by adding the internal volume of all piping, fittings, valves, meters, and manifolds between the source and the outlet. Piping volumes shall be calculated using Table 702.8.2. Where water is supplied by a circulating hot water system or an electrically heat-traced pipe, the hot water source shall be considered to be the loop or the heat -traced pipe, and the volume shall include the fitting on the loop that supplies the fixture branch.
TABLE 702.8.2

INTERNAL VOLUME OF

VARIOUS TYPES OF WATER DISTRIBUTION PIPE AND TUBING

Nominal Pipe or Tube Size (inch)	PIPE OR TUBING MATERIAL
	COPPER (Type)					CPVC			PE	PEX
	M	L		K		CTS SDR 11	SCH 40	SCH 80	AL-PE	CTS SDR 9	-AL-PEX
	Liquid Ounces per foot of length
3/8	1.06		0.97	0.84	NA		1.17	0.86	0.63	0.64	0.63
1/2	1.69		1.55	1.45	1.25		1.89	1.46	1.31	1.18	1.31
3/4	3.43		3.22	2.90	2.67		3.38	2.74	3.39	2.35	3.39
1	5.81		5.49	5.17	4.43		5.53	4.56	5.56	3.91	5.56
1 1/4	8.70		8.36	8.09	6.61		9.66	8.24	8.49	5.81	8.49
1 1/2	12.18		11.83	11.45	9.22		13.20	11.38	13.88	8.09	13.88
2	21.08		20.58	20.04	15.79		21.88	19.11	21.48	13.86	21.48

702.9 Trap priming water. Potable water shall not be used for trap priming purposes where a municipal reclaimed water distribution system or a graywater distribution system is provided.
702.9.1 Filtration required. Non-potable water utilized by pressurized trap primer devices shall be filtered by a 100 micron or finer filter.

702.9.2 Labeling and signage. Each trap primer device utilizing non-potable water shall be provided with signage in accordance with Section 706.2.
702.10 Makeup water supply. Onsite non-potable water supply systems, such as on-site reclaimed water, graywater and rain water harvest systems, shall be supplied with municipal-reclaimed makeup water except that potable water shall be supplied where municipal reclaimed water is not accessible or is not allowed for such use by the laws, rules and ordinances applicable in the jurisdiction.
702.11 Water powered pumps. Water-powered pumps are prohibited.
702.12 Food service handwashing faucets. Faucets for handwashing sinks in food service preparation and serving areas shall be of the self-closing type.
702.13 Dipper wells. The water supply to a dipper well shall have a shutoff valve and flow control valve. Water flow into a dipper well shall not exceed 6 gpm (22.7 lpm) at a supply pressure of 60 psi (413.7 kPa).
702.14 Automated vehicle wash facilities. Not less than 50 percent of the water used for the rinsing phase of the wash cycle at automated vehicle wash facilities shall be collected to be reused for the washing phase. Towel and chamois washing machines shall have high-level water cut-offs.
702.15 Self-service vehicle wash facilities. Spray wand nozzles used at self-service vehicle wash facilities shall discharge not more than 3 gpm (11.4 lpm). Faucets for chamois wringer sinks shall be of the self closing type.
702.16 Vehicle washing facilities. Wastewater from reverse osmosis water treatment systems installed in vehicle washing facilities shall discharge to the washing phase water holding tank.
702.17 Covers. Spas shall be provided with vapor-retardant covers. Installed covers shall be in continuous contact with the rim surface of the spa.
702.18 Splash troughs. Swimming pool splash troughs shall discharge to the pool water system.
702.19 Covers. Swimming pools shall be provided with vapor-retardant covers.
SECTION 703

HVAC SYSTEMS AND EQUIPMENT
703.1 Hydronic closed systems. Closed loop hydronic heating and cooling systems, and ground-source heat pump systems shall not be connected to a potable makeup water supply.
703.2 Humidification systems. Humidification systems shall be disabled and locked-out when the relative humidity in the space served is over 55 percent.

space served is 55% and higher.

703.3 Condensate coolers and tempering. Potable water shall not be used to reduce the temperature of waste water such as steam condensate and boiler blow-down water.
703.4 Condensate drainage recovery. Where a non-potable water source, such as a graywater or rain water collection system, is installed on site, or water features or fountains are installed within the building, cooling system condensate shall be collected and discharged to such collection system, water feature or fountain.
703.5 Heat exchangers. Potable water shall not be used as a coolant in any heat exchanger except where the potable water is recirculated.
703.6 Humidifier discharge. Water discharge from flow-through type humidifiers and from the draining and flushing operations of other types of humidifiers shall be collected for reuse where a collection and reuse system exists.
SECTION 704

WATER TREATMENT DEVICES AND EQUIPMENT
704.1 Water softeners. Water softeners shall comply with Sections 704.1.1 through 704.1.4.
704.1.1 Demand initiated regeneration. Water softeners shall be equipped with demand- initiated regeneration control systems. Such control systems shall automatically initiate the regeneration cycle after determining the depletion, or impending depletion of softening capacity.
704.1.2 Water consumption. Water softeners shall have a maximum water consumption during regeneration of 5 gal (18.9 L) per 1000 grains of hardness removed as measured in accordance with NSF 44.
704.1.3 Waste connections. Waste water from water softener regeneration shall not discharge to reclaimed water collection systems and shall discharge in accordance with the International Plumbing Code.
704.1.4 Efficiency and listing. Water softeners that regenerate in place, that are connected to the water system they serve by piping not exceeding 1 ¼ inch in diameter, or that have a volume of 3 cubic feet (0.085 m³) or more of cation exchange media shall have a rated salt efficiency of not less than 4,000 grains of total hardness exchange per pound of salt (477 g of total hardness exchange per kg of salt), based on sodium chloride equivalency and shall be listed as compliant with NSF/ANSI 44.. All other water softeners shall have a rated salt efficiency of not less than 3,500 grains of total hardness exchange per pound of salt (477 g of total hardness exchange per kg of salt), based on sodium chloride equivalency .
704.2 Reverse osmosis water rreatment systems. Point-of-use reverse osmosis treatment systems shall comply with NSF 58. The discharge pipe from a reverse osmosis drinking water treatment unit shall connect to the building drainage system in accordance with Section 611.2 of the International Plumbing Code . Point-of-use reverse osmosis systems shall be equipped with an automatic shutoff valve that prevents the production of reject water when there is no demand for treated water.
SECTION 705

SPECIFIC WATER CONSERVATION MEASURES
705.1 Indoor ornamental fountains and water features. Where indoor ornamental fountains, indoor water features or permanent indoor irrigation systems are supplied by potable water, the building that contains them shall comply with one additional project elective from Section 710. This shall be in addition to the requirements of Table 302.1.
705.2 Metering. Water meters shall be required for building water consumed from any source. Each potable and reclaimed source, and each onsite water system, shall be metered separately. Meters shall be installed in accordance with the requirements of the International Plumbing Code. Each meter shall be required to be capable of communicating water consumption data remotely.
705.2.1 Metering. All potable and non-potable water supplied to the applications listed in Table 705.2.1 shall be individually metered in accordance with the requirements indicated in Table 705.2.1. Similar appliances and equipment shall be permitted to be grouped and supplied from piping connected to a single meter.
SECTION 706

NON-POTABLE WATER REQUIREMENTS
706.1 Scope. The provisions of this section shall govern the use of non-potable water and the construction, installation, and design of systems utilizing non-potable water. The use and application of non-potable water shall comply with laws, rules and ordinances applicable in the jurisdiction.
706.2 Signage required. Where non-potable water is used for a water use application, signage shall be provided that reads as follows: “Non-potable water is utilized for [application name]. Caution: non-potable water. DO NOT DRINK.” The words shall be legibly and indelibly printed on a sign constructed of corrosion-resistant waterproof material. The letters of the words shall be not less than 0.5 inches in height and of a color in contrast to the background on which they are applied. In addition to the required wordage, the pictograph shown in Figure 706.2 shall appear on the signage required by this section. The required location of the signage and pictograph shall be in accordance with the applicable section of this code that requires the use of non-potable water.
706.3 Water quality. Non-potable water for each end use application shall meet the minimum water quality requirements as established for the application by the laws, rules and ordinances applicable in the jurisdiction.
TABLE 705.2.1

METERING REQUIREMENTS

APPLICATION	REQUIREMENTS
Irrigation	Irrigation systems that are automatically controlled shall be metered.
Tenant Spaces	Tenant spaces that consume water shall be metered individually.
Onsite Water Collection Systems	The makeup water lines supplying onsite water collection systems shall be metered.
Ornamental Water Features	Ornamental water features with a permanently installed water supply shall be required to utilize a meter on makeup water supply lines.
Pools and Spas	Indoor and outdoor pools and spas shall be required to utilize a meter on makeup water supply lines.
Cooling Towers	Cooling towers or groups of towers shall be required to utilize a meter on makeup water and blow-down water supply lines.
Steam Boilers	The makeup water supply line to steam boilers having a rating of 1,000,000 BTU/h or greater shall be metered.
Industrial Processes	Industrial processes consuming more than 1,000 gallons per day on average shall be metered individually.
Evaporative Coolers	Evaporative coolers supplying in excess of 0.6 gpm, on average, makeup water shall be.
Fluid Coolers and Chillers	Water-cooled fluid coolers and chillers that do not utilize closed-loop recirculation shall be metered.
Roof Spray Systems	Roof spray systems for irrigating vegetated roofs or thermal conditioning shall be metered.

Figure 706.2 Pictograph – DO NOT DRINK

SECTION 707

Rainwater collection and distribution systems.
707.1 Scope. The provisions of this section shall govern the construction, installation, alteration, and repair of rainwater collection and conveyance systems.
707.2 Permits. Permits shall be required for the construction, installation, alteration, and repair of rainwater collection and conveyance systems. Construction documents, engineering calculations, diagrams, and other such data pertaining to the rainwater collection and conveyance system shall be submitted with each application for permit.
707.3 Potable water connections. Where a potable system is connected to a rainwater collection and conveyance system, the potable water supply shall be protected against backflow in accordance with Section 608 of the International Plumbing Code.
707.4 Non-Potable water connections. Where non-potable water from different sources is combined in a system, the system shall comply with the most stringent of the requirements of this code that are applicable to such sources.
707.5 Installation. Except as provided for in this section, all systems shall be installed in compliance with the provisions of the International Plumbing Code and manufacturer’s instructions.
707.6 Applications. Untreated rainwater shall be utilized in accordance with Section 702 and local codes. Treated rainwater shall be utilized in accordance with Section 706 or potable water provisions of the International Plumbing Code, as applicable, and as permitted by local codes.
707.7 Approved components and materials. Piping, plumbing components, and materials used in the collection and conveyance systems shall be manufactured of material approved for the intended application and compatible with any disinfection and treatment systems used.
707.8 Insect and vermin control. Inlets and vents to the system shall be protected to prevent the entrance of insects and vermin into storage tanks and piping systems. Screens installed on vent pipes, inlets, and overflow pipes shall have an aperture of not greater than 1/16 inch and shall be close-fitting. Screen materials shall be compatible with contacting system components and shall not accelerate corrosion of system components.
707.9 Drainage. Water drained from the roof washer or debris excluder shall not be drained to the sanitary sewer. Such water shall be diverted from the storage tank and discharge in a location that will not cause erosion or damage to property. Roof washers and debris excluders shall be provided with an automatic means of self draining between rain events, and shall not drain onto roof surfaces.
707.10 Freeze protection. Where sustained freezing temperatures occur, provisions shall be made to keep storage tanks and the related piping from freezing.
707.11 Trenching requirements. All water service piping, including piping containing rainwater, shall be separated from the building sewer by 5 feet (1524 m) of undisturbed or compacted earth. Water service pipes, potable and non-potable, shall not be located in, under or above cesspools, septic tanks, septic tank drainage fields or seepage pits. Buried rainwater collection and distribution piping shall comply with the requirements of Section 306 of the International Plumbing Code for support, trenching, bedding, backfilling, and tunneling.
Exceptions:
1. The required separation distance shall not apply where the bottom of the water service pipe within 5 feet (1524 mm) of the sewer is a minimum of 12 inches (305 mm) above the top of the highest point of the sewer and the pipe materials shall comply with the International Plumbing Code for such applications.
2. Water service pipe is permitted to be located in the same trench with a building sewer, provided such sewer is constructed of materials that comply with the International Plumbing Code for such installations.
3. The required separation distance shall not apply where a potable or non-potable water service pipe crosses a sewer pipe provided the water service pipe is sleeved to at least 5 feet (1524 mm) horizontally from the sewer pipe centerline on both sides of such crossing with pipe materials that comply with the International Plumbing Code for such applications.
4. Irrigation piping located outside of a building and downstream of the backflow preventer is not required to meet the trenching requirements where rainwater is used for outdoor applications.
707.12 Rainwater catchment and collection systems. The design of rainwater collection and conveyance systems shall conform to accepted engineering practice.
707.12.1 Collection surface. Rainwater shall be collected only from above-ground impervious roofing surfaces constructed from approved materials. Collection of water from vehicular parking or pedestrian surfaces shall be prohibited except where the water is used exclusively for landscape irrigation. Overflow, condensate discharge and bleed-off pipes from roof-mounted appliances including but not limited to evaporative coolers, water heaters, and solar water heaters shall not discharge onto rainwater collection surfaces.
707.12.1.1 Potable water applications. Where collected water is to be treated to potable water standards, wood or cedar shake roofing materials, roofing materials treated with biocides, and lead flashing is prohibited on collection surfaces. Painted surfaces are acceptable only where paint has been certified to ensure that the toxicity level of the paint is acceptable for drinking water contact. Lead, chromium or zinc based paints are not permitted on rainwater collection surfaces. Flat roofing products shall be certified to NSF P151. Rainwater shall not be collected from vegetated roof systems.
707.12.2 Debris excluders. Downspouts and leaders shall be connected to a roof washer and shall be equipped with a debris excluder or equivalent device to prevent the contamination of collected rainwater with leaves, sticks, pine needles and similar material. Debris excluders and equivalent devices shall be self-cleaning.
707.12.3 Roof gutters and downspouts. Gutters and downspouts shall be constructed of materials compatible with the rainwater quality and collection surface. Joints shall be sealed against leakage. Where the collected rainwater is to be used for potable applications, gutters and downspouts shall be constructed of materials approved for drinking water applications and flashing and joints shall not be made of lead.
707.12.3.1 Slope. Roof gutters, leaders, and rainwater collection piping shall slope continuously toward collection inlets and shall be free of leaks. Gutters and downspouts shall have a slope of not less than 1/8 inch per foot along their entire length, and shall not permit the collection or pooling of water at any point.
Exception. Siphonic drainage systems installed in accordance with the manufacturer’s installation instructions shall not be required to have slope.
707.12.3.2 Size. Gutters and downspouts shall be installed and sized in accordance with Section 1106.6 of the International Plumbing Code and local rainfall rates.
707.12.3.3 Cleanouts. Cleanouts shall be provided in the water conveyance system so as to allow access to all filters, flushes, pipes and downspouts.
707.12.4 Collection pipe materials. In buildings where rainwater collection and conveyance systems are installed, drainage piping approved for use within plumbing drainage systems shall be utilized to collect rainwater and convey it to the storage tank. Vent piping approved for use within plumbing venting systems shall be utilized for all vents within the rainwater system. Drains to a storm water discharge shall use approved waste piping.
707.12.4.1 Joints. Collection piping conveying rainwater shall utilize joints approved for use with the distribution piping and appropriate for the intended applications as specified in the International Plumbing Code.
707.12.4.2 Size. Collection piping conveying rainwater from collection surfaces shall be sized in accordance with local Chapter 11 of the International Plumbing Code and local rainfall rates.
707.12.4.3 Labeling and marking. Additional marking of rainwater collection piping shall not be required beyond that required for sanitary drainage, waste, and vent piping by the International Plumbing Code.
707.12.5 Filtration. Collected rainwater shall be filtered to the level required for the intended end use. Filters shall be accessible for inspection and maintenance.
707.12.6 Disinfection. Where the intended application and initial quality of the collected rainwater requires disinfection or other treatment or both, the collected rainwater shall be treated as needed to ensure that the required water quality is delivered at the point of use.
707.12.7 Storage tank. The design of the storage tank shall be in accordance with Sections 707.12.7.1 through 707.12.7.11.
707.12.7.1 Location. Storage tanks shall be installed either above or below grade. Above grade storage tanks shall be protected from direct sunlight and shall be constructed using opaque, UV resistant materials including, but not limited to, heavily tinted plastic, lined metal, concrete, wood, or painted to prevent algae growth, or shall have specially constructed sun barriers including but not limited to installation in garages, crawlspaces, or sheds. Storage tanks and their manholes shall not be located directly under any soil or waste piping or any source of contamination. Rainwater storage tanks shall be located with a minimum horizontal distance between various elements as indicated in Table 707.12.7.1.
TABLE 707.12.7.1

LOCATION OF RAINWATER STORAGE TANKS

Element	Minimum Horizontal Distance from Storage Tank (feet)
Lot line adjoining private lots	5
Seepage pits	5
Septic tanks	5

707.12.7.2 Materials. Where water is collected onsite, it shall be collected in an approved tank constructed of durable, nonabsorbent and corrosion-resistant materials. Where collected water is to be treated to potable water standards, tanks shall not be constructed of recycled materials and shall be constructed of materials in accordance with the International Plumbing Code. Storage tanks shall be constructed of materials compatible with the type of disinfection system used to treat water upstream of the tank and used to maintain water quality within the tank.
707.12.7.2.1 Wooden tanks. Wooden storage tanks shall be provided with a flexible tank liner.
707.12.7.3 Foundation and supports. Storage tanks shall be supported on a firm base capable of withstanding the storage tank’s weight when filled to capacity. Where earthquake loads are applicable in accordance with the International Building Code, above-ground collection tank supports shall be designed and installed for the seismic forces in accordance with the International Building Code.
707.12.7.3.1 Ballast. Where the soil can become saturated, an underground storage tank shall be ballasted, or otherwise secured, to prevent the tank from floating out of the ground when empty. The combined weight of the tank and hold down ballast shall meet or exceed the buoyancy force of the tank. Where the installation requires a foundation, the foundation shall be flat and shall be designed to support the storage tank weight when full, consistent with bearing capability of adjacent soil.
707.12.7.3.2 Structural support. When installed below grade, storage tank installations shall be designed to withstand earth and surface structural loads without damage and with minimal deformation when filled with water or empty.
707.12.7.4 Makeup water. Where an uninterrupted supply is required for the intended application, potable or municipally supplied reclaimed or recycled water shall be provided as a source of makeup water for the storage tank. The potable or reclaimed or recycled water supply shall be protected against backflow by means of an air gap not less than 4 inches (102 mm) above the overflow or an approved backflow device in accordance with the International Plumbing Code. There shall be a full-open valve located on the makeup water supply line to the storage tank. Inlets to storage tank shall be controlled by fill valves or other automatic supply valves installed so as to prevent the tank from overflowing and to prevent the water from dropping below a predetermined level.
707.12.7.5 Overflow. The storage tank shall be equipped with an overflow pipe having the same or larger area as the sum of the areas of all tank inlet pipes. The overflow pipe shall be trapped and shall be discharged in a manner consistent with storm water runoff requirements of the jurisdiction and at a sufficient distance from the tank to avoid damaging the tank foundation. The overflow drain shall not be equipped with a shutoff valve. A minimum of one cleanout shall be provided on each overflow pipe in accordance with Section 708 of the International Plumbing Code.

707.12.7.6 Access. A minimum of one access opening shall be provided to allow inspection and cleaning of the tank interior. All access openings to storage tanks and other vessels shall have an approved locking device or shall otherwise be protected from unauthorized access. Below grade storage tanks, located outside of the building, shall be provided with either a manhole not less than 24 inches (610 mm) square or a manhole with an inside diameter of not less than 24 inches (610 mm). Manholes shall extend not less than 4 inches above ground or shall be gasketed and bolted to prevent water infiltration. Finish grade shall be sloped away from the manhole to divert surface water from the manhole. Each manhole cover shall have an effective locking device. Service ports in manhole covers shall be not less than 8 inches (203 mm) in diameter and shall be a minimum of 4 inches (102 mm) above the finished grade level. The service port shall have an effective locking cover or a brass cleanout plug.
Exception: Storage tanks having a volume of less than 800 gallons and installed below grade shall not be required to be equipped with a manhole where provided with a service port that is not less than 8 inches (203 mm) in diameter.
707.12.7.7 Venting. Tanks shall be provided with a vent sized in accordance with the International Plumbing Code and based on the diameter of the tank influent pipe. Tank vents shall not be connected to sanitary drainage system vents.

707.12.7.8 Inlets. Storage tank inlets shall be designed to introduce water into the tank with minimum turbulence, and shall be located and designed to avoid agitating the contents of the storage tank.
707.12.7.9 Outlets. Outlets shall be located at least 4 inches (102 mm) above the bottom of the storage tanks and shall not skim water from the surface.
707.12.7.10 Drain. A drain shall be located at the lowest point of aboveground storage tanks and shall discharge in a manner consistent with the storm water runoff requirements of the jurisdiction and at a sufficient distance from the tank to avoid damaging the tank foundation. A minimum of one cleanout shall be provided on each drain pipe in accordance with Section 708 of the International Plumbing Code.
707.12.7.11 Labeling and signage. Each storage tank shall be labeled with its rated capacity and the location of the upstream bypass valve. Storage tanks shall bear signage that reads as follows: “CAUTION: NON-POTABLE WATER – DO NOT DRINK.” Where an opening is provided that could allow the entry of personnel, the opening shall bear signage that reads as follows: “DANGER – CONFINED SPACE.” Markings shall be indelibly printed on a tag or sign constructed of corrosion-resistant waterproof material mounted on the tank or shall be indelibly printed on the tank. The letters of words shall be not less than 0.5 inches in height and shall be of a color that contrasts with the background on which they are applied.
707.12.8 Valves. Valves shall be supplied in accordance with Sections 707.12.8.1 and 707.12.8.2.
707.12.8.1 Influent diversion. A means shall be provided to divert storage tank influent to the storm drainage system to allow maintenance and repair of the storage tank system.
707.12.8.2 Backwater valve. Backwater valves shall be installed on each overflow and tank drain pipe. Backwater valves shall be installed so that access is provided to the working parts for service and repair.
707.12.9 Roof washer. A sufficient amount of rainwater shall be diverted at the beginning of each rain event, and not allowed to enter the storage tank, to wash accumulated debris from the collection surface. The amount of rainfall to be diverted shall be field adjustable as necessary to minimize storage tank water contamination. The roof washer shall not rely on manually operated valves or devices, and shall operate automatically. Diverted rainwater shall not be drained to the roof surface, and shall be discharged in a manner consistent with the storm water runoff requirements of the jurisdiction. Roof washers shall be accessible for maintenance and service.
707.12.10 Vent piping. Storage tanks shall be provided with a vent in accordance with the requirements of Section 707.12.7.7. Vents shall be sized in accordance with the International Plumbing Code, based on the aggregate diameter of storage tank influent pipe(s). Vents shall be protected from contamination by means of a U-bend installed with the opening directed downward or an approved cap. Vent outlets shall extend a minimum of 4” above grade, or as necessary to prevent surface water from entering the storage tank. Vent openings shall be protected against the entrance of vermin and insects in accordance with the requirements of Section 707.8.

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